The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 05, 2018
Filed:
Nov. 15, 2016
Qualcomm Incorporated, San Diego, CA (US);
Timothy Donald Gathman, San Diego, CA (US);
Ojas Choksi, San Diego, CA (US);
Aleksandar Miodrag Tasic, San Diego, CA (US);
Sasha Vujcic, San Diego, CA (US);
Chirag Dipak Patel, San Diego, CA (US);
Wu-Hsin Chen, San Diego, CA (US);
Klaas Van Zalinge, La Jolla, CA (US);
QUALCOMM Incorporated, San Diego, CA (US);
Abstract
A reconfigurable filter circuit has a first path including a transimpedance amplifier (TIA). The transimpedance amplifier has an input that receives an input current and an output that outputs a voltage. The reconfigurable filter circuit also includes a switchable feedback path. The switchable feedback path includes a first low-pass filter coupled to an output of the TIA. The switchable feedback path also includes a first switch to couple the feedback path to provide a feedback current to the first path resulting in a bandpass response in the output voltage when the switch is closed and a low-pass response in the output voltage when the switch is open.